Not the same year your looking at but my 2004 GC "Overland" edition with 214,000 has been an excellent vehicle to drive with no real issues since I've owned I the last 3 yrs. Not a single electrical issue at all and no comparison to my XJ in ride/comfort/mileage/options "everything offered that year from Chy". It is my DD and my wife now drives our Lincoln Town Car most of the time it has the same options almost except no Nav in it so she's still happy..
As far as off road I have used it a little and on road in quite deep snow, both differentials came with the locked options so does quite well up to a clearance issue with stock 17" tires go.